Fastening device for masonry.



PATENTED JAN. 21, 1908.

SONRY.

m Pmm SEN D R T GA m I M EA T S A P UNITED STATES PATENT ornion.

" RALPH-S. PEIRGE, OF CHICAGO, ILLINOI S.

- To all whom'it may concern:

FASTENING DEVICE FOR MASONRY.

' Patented Jan. 21, 1908.

Application filed December 24' 1.906 Serial No. 349.237-

Be it known that I, RALPH S. PErRcE, a citizen of the United States of America, and aresident of Chicago, county of Cook, and State of Illinois, have invented a new and useful Improvementin Fastening Devices for Masonry, of which the following is a specification.

My invention relates to an improved means of securing objects to masonry in ..,combination with bolts, rivets and screws,

orlugs orprojectio'ns, similar in shape but part of the obje'ct'to be secured, and it consists'of an expansive washer and a conically shaped sleeve between which soft metal 1s compressed and thus forced into the crevices in the side walls of bore provided in the material to which the object is to be fastened.

. asshowninFi .1.

The obj ect of my invention is to provide a fastening device, which under varying conditions and nature of the material to which -the object is to be secured will withstand uniformly a much greater strain than the art has reviously known in a device of the kind. y invention is illustrated in the accomanying sheet of drawings in which Figure 1 1s a sectional view of a part of some masonry structure, as the wall of a brick building, a

hole having been provided therein and my (placed in said hole and loosely asdevice semble on an ordinary bolt. Fig. 2 is a similar view but difiersfrom-Fig. 1 in that the several parts have been pressed together, illustrating the relative pos tion of the arts when the device is com letely set. ig. 3 is. a perspective view 0 the several parts shown separately. Fi 4 is a sectional view of Fig. 1 taken on the lme a b.

Similar letters refer to similar parts throughout the several views. A brick g is provided with a circular perforation into said perforation the bolt a is placed'the head 5' of the bolt bei first insertcdand placed in contact with ffie base of the perforation. On the shank of the bolt a are placed an expanded metal washer c, a soft metal cylinder d and a conically shaped collar e provided with The ri ge f may be any roughness of t e surface at the point indicated. The washer c, and collar e are preferably made of iron, and the cylinder (1 of lead. The method of; securing my device is as follows: When the bolt has been thus ina ridgef, all arranged and placedin contact with the outer face of hollow punch is then subjected to a few blows from a hammer, which drives the conically shaped collar e into the soft metal cylinder d, the soft metal cylinder d expanding into the crevicesof the wall of the perforation in the masonry g, and is pressed against the dished metal washer 0, thus forclng it back against thehead of the bolt and the washer c expands into the side walls of the perforation .1n the brick g, the whole combination thus becoming securely wedged to.-

ether. Any subsequent outer pull on the olt a only tends to force the soft metal of the cylinder (1 the more into the crevices of the side walls of the perforation in the brick g by the peculiar arran ement and shape of the arts. The conical y shaped collar e being oose on the shank of the bolt a, but sesoft metal 0 the outer end of the cylinder d compressed .around the ridge f, acts as a wedge when an outward pressure is a plied to the bolt 0, and thus further ex an s the soft metal ofthe cylinder d as t e bolt 0 gives slightly under the pressure; the soft pressed between the washer c and the collar 0.

I do not claim broadly? the use of soft metal as lead for. securing bolts, etc. in masonry, as lead has thus been'used with va ing success for many years.

deavoring to increase the holding power, and while these peculiarly shaped heads ma mcrease the holding power when the hea fits exactly into the perforation in the masonry, but it is found in practice that in making a 'hole of the kind in soft stone or brick t at the material crumbles awa more or less, with the result that the ho e is irre arfy formed, ,and such being the case t e so t metal acking flows around the head in these irre ar places, and the holdin power of the bolt is thusmuch reduced. s, however, is not the case inmy device, because of the dished washer 0 increasing in circumference thereby completely filling the perforation, thus preventing the soft metal packing from flowing around the head of the bolt and together with the addition'of the conical bollar the holding power of the device is materially increased. k

slipped over the threaded end of the bolt a,

the collar c." The outer end of the pipe or.

cured in the perforation in the brick g, by the metal of the cylinder (1 being further c0m- Peculiar y shaped headed bolts have been used in enafter being inserted in theperforation, and

' made to accomplish the same results, which It will be understood that a metal packing as lead, which is, soft enough to be pressed into the crevices in the side walls of a perforation in, masonry would not offer i much resistance to the head of a bolt be' pulled through it, unless the soft metal is so confined between harder material as to revent the soft metal flowing readily and t us relieving the-binding action. It is this reinforcing and preventing the flow of the soft metal in which my invention consists.

I do not wish to limit myself to the exact form of the several parts as shown herein, or the exact arrangement of the parts, as I con-' sider other forms and arrangements could be readily would lie within the scope of my invention.

Having thus described my invention, what I wish to claim as new and desire to secure by Letters Patent is 1. The combination, in a device for fastening objects to masonry, of a fastener having a head and shank, with a dished metal washer sleeved on the shank adjacent the head, a hard metal sleeve surrounding the shank and soft metal provided be- .2. In a device for fastening objects to masonry, the combination of a fastener hav- -ing a-Iie'a'd and shank, a dished metal washer sleeved on the shank adjacent the head, a "conically-shaped hard metal collar surrounding the shank and a soft metal cylinder provided between said washer and collar.

3. The combination, in adevice for fasing a head and conical collar placed on the said shankand soft metal packing rovided around said shank between the head and the conical collar.

4. The combination, in a devicefor fastening ob'ects to masonry, of a fastener having a hea and shank, soft metal acking provided around the shank anda ished metal washer sleeved on the shank bet-ween the head and the metal acking. v

Signed by me at ghicago, county of Cook, State of Illinois, in

nesses.

RALPH S. PEIROE. Witnesses:

CARIJOTTA C. PEIRGE,

Ipackin tween said dished was er ant? sleeve;

ETHEL P. BROWN.

tening objects to masonry, of a fastener havshank, the herein described the presence of two wit- 

